Heavy Rainfall Possible Across the Central U.S.; Poor Air Quality Across the Northwest and North Central States

Thunderstorms will produce locally heavy rainfall and possibly some flash flooding across central portions of the country through tonight, with a few strong to locally severe thunderstorms possible. Otherwise, smoke from the wildfires burning across western North America will continue to create poor air quality across northern portions of the country.
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Last Update: 441 AM HST Sun Aug 19 2018

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Honolulu, HI Local Forecast Office

21NM S Wailea-Makena HI

Marine Zone Forecast


Synopsis: PHZ100-200330- 441 AM HST Sun Aug 19 2018 .Synopsis for Hawaiian coastal waters... A weak trough of low pressure will continue to move through the western coastal waters today producing some locally heavy showers and isolated thunderstorms. Light to moderate trade winds will persist today, then increase to moderate to strong levels tonight through the middle of next week as high pressure builds northeast of the state and Hurricane Lane passes by to the south of the Big Island Wednesday. $$

Today
East winds 20 knots. Wind waves 7 feet. East swell 3 feet in the afternoon. Isolated showers.
Tonight
East winds 25 knots. Wind waves 6 feet. East swell 3 feet. Isolated showers.
Monday
Northeast winds 25 knots. Gusts up to 35 knots in the afternoon. Wind waves 7 feet. East swell 3 feet. Isolated showers in the morning.
Monday Night
Northeast winds 30 knots. Wind waves 7 feet. East swell 3 feet. Swell north 3 feet. Isolated showers.
Tuesday
East winds 25 knots. Wind waves 7 feet. Mixed swell east 3 feet and north 3 to 4 feet. Isolated showers in the morning, then scattered showers in the afternoon.
Tuesday Night
East winds 25 knots. Wind waves 7 feet. Mixed swell southeast 3 feet and north 4 feet. Scattered showers.
Wednesday
East winds 25 knots. Gusts up to 35 knots in the afternoon. Wind waves 8 feet. Mixed swell southeast 3 feet and north 4 feet. Scattered showers in the morning. Isolated showers in the afternoon.
Wednesday Night
East winds 25 knots. Wind waves 8 feet. Mixed swell southeast 3 feet and north 4 feet. Isolated showers in the evening. Scattered showers after midnight.
Thursday
East winds 30 knots. Wind waves 9 feet. Mixed swell southeast 3 feet and north 3 to 4 feet. Isolated showers in the morning.
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ABOUT THIS FORECAST

Last Update: 441 AM HST Sun Aug 19 2018
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